When roads are built in grizzly habitat, bears come into conflict with humans more often. A new report explains what’s necessary to keep the bears from dying.

A coalition of public and private entities hopes to revive both fish and water supplies in a hotter, drier climate.

The move comes the same day as a new study that shows overwhelming support for the environmental legislation.

All-female ranger teams are an innovative and potentially more effective way to defend wildlife, says the founder of the International Anti-Poaching Foundation.

The tiny fish doesn’t reproduce well in years when the water doesn’t flow. Several bad years in a row could push the species closer to extinction.

Drought has already killed more than 100 wild horses. Volunteers hope to prevent more deaths.

YouTube is inspiring viewers across the globe to protect Hawaii’s Laysan albatross — but will that be enough in the face of climate change?

Atlantic salmon from Norway carry a dangerous disease that puts native Canadian fish at risk — and maybe those in the United States, too.

Using birds to help get rid of pests is proving to be more effective than poisons — and less expensive.

Video: The big cats face a long list of threats, from climate change to habitat loss to the illegal pet trade.